Originally Posted by
velociabstract
I logged during my second heat at the track yesterday. It was in the upper 80's and 100' above sea level.
See my signature for my modifications.
Max boost 18PSI
Max timing 26.5º
AFR's mid 12's until hot then it dropped to high 11's. I was using 100 octane which burns leaner than 93.
Hot is over 150º IATs and 230 ECT's
Max ECT 235º
Max IAT 165º
Max exhaust gas temperature 1375º
Now you have fresh data to ponder.
Les
Here is what I got on my newest tune:
RPM-5556
Boost-20.1
Timing-20.5
Coolant temp-183
IAT-126
I checked some older datalogs with older tunes, this had most data close:
RPM-5648
Boost-19.3
Timing-19
Coolant temp-180
IAT-129
It seems my tunes do not have very much timing in them. Wolf, I was lucky to get a 3rd gear pull and no way I could get through 4th gear and come near 150mph! I will check and see what amount of timing I am getting just cruising along, 70mph in 5th gear. maybe I can get Jerry to add some timing and get the fan to come in earlier or whatever he can do to keep the car a few degrees cooler. 187* should be max. Mark